EP0292498B1 - Verfahren zum einschieben von röhren in wärmeaustauscher und vorrichtung dazu - Google Patents

Verfahren zum einschieben von röhren in wärmeaustauscher und vorrichtung dazu Download PDF

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Publication number
EP0292498B1
EP0292498B1 EP87901193A EP87901193A EP0292498B1 EP 0292498 B1 EP0292498 B1 EP 0292498B1 EP 87901193 A EP87901193 A EP 87901193A EP 87901193 A EP87901193 A EP 87901193A EP 0292498 B1 EP0292498 B1 EP 0292498B1
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EP
European Patent Office
Prior art keywords
tube
tyres
baffles
condenser
air inflated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP87901193A
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English (en)
French (fr)
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EP0292498A4 (de
EP0292498A1 (de
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Richard G. Gilbertson
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • B23P19/022—Extracting or inserting relatively long parts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49373—Tube joint and tube plate structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube
    • Y10T29/4938—Common fin traverses plurality of tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53113—Heat exchanger

Definitions

  • the present invention relates to heat exchangers and to a method and apparatus for inserting tubes into heat exchangers.
  • Patent US-A-4,221,534 describes a device for feeding tubes into a heat exchanger which includes a pair of friction wheels for forcing the tubes through openings in the condenser. Again, there is no provision for relieving stresses in the tube as it passes through the maze of perforated baffles.
  • JP-B-53-121255 defining the closest prior art describes a tube inserting apparatus for a heat exchanger having a horizontal roller device which holds the tube and which is capable of transporting the same in the direction of the axial core and a separate inclined roller device which is capable of rotating the tube around its axial core.
  • a horizontal roller device which holds the tube and which is capable of transporting the same in the direction of the axial core
  • a separate inclined roller device which is capable of rotating the tube around its axial core.
  • an objective of the present invention to provide an improved tube insertion method and apparatus capable of efficiently and dependably inserting a tube measuring 1" x 46" at the rate of about two per minute with the proper extension (end stock) following insertion with an effective provision for reducing distortion, bending or related damage to the tubing as it is inserted.
  • a further object is to provide an improved tube insertion method and apparatus, wherein a tube can be inserted by a single operator, wherein highly skilled labour is not required.
  • a further objective is to provide means for aligning the insertion apparatus with the tube when the leading end of the tube has been placed manually in the heat exchanger.
  • an apparatus for inserting a tube into a condenser or heat exchanger unit having a plurality of baffles with aligning openings through which the tube is to be extended comprising drive roller means engagable with the tube for advancing the tube axially into the heat exchanger, characterised in that the drive roller means comprise air inflated tyres inflated to a preselected pressure and forming a support surface, including an air inflated tyre positioned below the tube for directly supporting the tube, lateral guide means are provided to guide the tube in side to side directions and the said air inflated tyres are rotationally driven and rotate about axes that are canted in opposite directions to the longitudinal axis of the tube and are operatively associated with the tube and substantially continuously and simultaneously support and rotate the tube on its own axis as the tube is advanced successively through baffles in a condenser to equalise stresses within the tube being inserted into the condenser and to avoid damage to such tube.
  • a hole cleaner is temporarily mounted on the leading end of the tube, the tube is inserted with the hole cleaner in place on the tube and following insertion, the tube cleaner is removed from the end of the tube.
  • the cleaner can be slidably and hermetically sealed in the leading end of the tube. If this method is used, air under pressure is forced into the tube from the trailing end to remove the cleaner by creating pressure behind it to blow it out the end.
  • a stock setting member is releasably mounted in the trailing end of the tube with a stop member at its forward end.
  • the stop member is allowed to strike a fixed object at the end of the insertion process to thereby establish a predetermined end stock projection on the order of a fraction of an inch.
  • the present invention also provides a method of inserting a tube into aligned tube openings of a plurality of baffles arranged sequentially, comprising: engaging the tube with top and bottom air inflated tyres, inflated to a predetermined level, rotating about axes canted in opposite directions relative to the longitudinal axis of the tube and frictionally engaging the tube while the tube is supported on a retraction member; laterally guiding the tube in side to side directions; and advancing and simultaneously rotating the tube on its own axis by driving at least one air inflated tyre whereby the tube rotates as it enters into the baffles in sequence to thereby distribute stresses on the tube and reduce the drag at each opening to prevent damage to the tube and assist in clearing the tube openings in such baffles.
  • a tube inserting apparatus indicated generally by the numeral 10 is mounted adjacent to a heat exchanger such as a steam condenser 12 having a perforated tube sheet or baffle 13 secured in place at its edges by fastener 16 and including a multiplicity of openings 18 into which tubes such as the tube 20 are to be inserted.
  • a heat exchanger such as a steam condenser 12 having a perforated tube sheet or baffle 13 secured in place at its edges by fastener 16 and including a multiplicity of openings 18 into which tubes such as the tube 20 are to be inserted.
  • the apparatus 10 includes a supporting framework including upper and lower pairs of diagonal frame members 24 and 26, respectively, vertically disposed laterally spaced apart frame members 28 all connected to each other at their ends to form a generally triangular framework with horizontally disposed cross braces 29, 31 and 33 connected therebetween as shown in Figures 1 and 4.
  • Mounted upon the framework are three pairs of vertically spaced apart support wheels 30, 32 and 34, only those on the right hand side of the apparatus being shown in Figure 2, the other wheel of each pair being positioned in lateral alignment therewith.
  • Each of wheels 30-34 is engaged upon one of two upright carriage members 36 and 38 rigidly connected together at their ends by cross braces 40 and 42 and supported during operation by means of brackets 46 and 48, the former having horizontal and vertical wheels 50 and 52, respectively, engaging a horizontally disposed rail 60 that is connected to the heat exchanger at its ends by means of angle iron 62 and two or more of the fasteners 16.
  • the bottom of the carriage composed of the uprights 36,38 is supported upon a bracket 48 which includes a pair of wheels 54 and 56 adapted to engage a rail 64 supported upon angle iron 66 which is, in turn, bolted to the heat exchanger 12 by means of fasteners 16.
  • the framework 24-33 is supported upon the carriage by means of a boom 70 extending outwardly from the frame cross member 40, and being supported in part by means of a brace 72 rigidly secured thereto, as by welding with a pulley 74 at its free end supporting a lower pulley 76 by the provision of a cable 78 secured at one end 79 to the free end of the boom and extending downwardly around pulley 76, upwardly over pulley 74 and attached to a plate 80 on the boom 70.
  • Extending downwardly from the pulley 76 are suitable elastic supports such as rubber cords or springs, four cords 82 being shown in the example illustrated with their lower ends connected to the frame members 24.
  • the framework includes two laterally spaced apart parallel vertically disposed pairs of frame members 86 and 88, only the pair closest to the observer being shown in Figure 4.
  • the frame members 86-88 are each u-shaped and suitably rigidly secure at their upper and lower ends to the frame members 24 and 26, and are provided with vertically spaced apart upper and lower pairs of bearing blocks 92 and 94, respectively.
  • the lower blocks 94 are rigidly secured as by welding to the frame members 86 and 88, the upper pair of blocks are rigidly secured as by welding to the lower ends of a u-shaped support 93, that is itself supported at the lower end of a connecting rod 110 projecting downwardly from a positioning means such as a pneumatically operated positioning cylinder 112.
  • a positioning means such as a pneumatically operated positioning cylinder 112.
  • Between the upper and lower pairs of bearing blocks are mounted upper and lower drive members such as wheels with rubber tires 97 and 103, which are supported upon axles 96 and 102, respectively. All four of the bearing blocks are provided with horizontally disposed axle slots which enable the axles 96 and 102 to be pitched or canted at an oblique angle with respect to the tube 20.
  • axles 96,102 are positioned and held in place by means of front and rear set screws 98,100 for wheel 97,104 and 106 for wheel 103.
  • wheel 97 is canted to the right in the figure and wheel 103 is canted in the opposite direction to the left.
  • the tubing 20 will spin in a clockwise direction as seen in Figure 3 as it is simultaneosuly advanced, typically making one turn for each 80 cm of forward travel.
  • Threaded vertically in cross brace members 90 which extend between the frame members 86 and 88 are provided stops, which in this case comprise bolts having heads 89 which are engaged at times by the bearing blocks 92 limiting their downward motion.
  • the lower wheel and tire assembly 103 is driven during opertion by means of a suitable drive motor 107 connected through a chain and sprocket assembly 109 ( Figure 2), which is not shown in Figure 3 so that associated parts may be clearly seen.
  • the motor 107 thus drives the wheel and tire assembly 103 directly and the tire 103 in turn engages tube 20 through friction.
  • the amount of air pressure used in the tires 97,103 is selected and maintained along with the fluid pressure in cylinder 112 to provide the desired frictional engagement between the tires and the tube. If either the fluid pressure in the cylinder 112 or the pressure in the tires is increased, frictional engagement will be increased.
  • the maximum downward movement of the upper tire 97 is limited by the stops 89. This serves to limit the amount of pressure that can be applied by the cylinder 112.
  • rotation of the upper and lower endless drive members 97 and 103 frictionally engage the tubing, thereby advancing it while simultaneously spinning it on its own axis, whereby the tube rotates as it advances through the heat exchanger, thereby distributing stresses on the tubing and relieving the buildup of pressures, thereby reducing damage to the tube and simultaneously assisting in clearing the tube openings in the tube plates or baffles.
  • the tube may, when it strikes an obstruction, stop advancing temporarily because of the obstruction and, while the tires 97 and 103 slip on the surface of the tube 20, the tube may continue to spin, thereby clearing the obstruction from the opening in the baffle which then allows the tube to continue to move in a forward direction.
  • the tire and wheel assemblies 97 and 103 are pitched in opposite directions X and Y, respectively, from the center line of the tubing and the thurst axis by an acute angle, typically about 6°.
  • the tube is held between the wheels for manual loading by trough 110 connected to the framework above brace 33.
  • the tube 20 can also be guided as required by two cooperating pairs of vertically disposed laterally spaced apart guide rollers 113 mounted on the framework for rotation on vertical axes on opposite sides of the tube 20 as seen in Figures 1, 2 and 3.
  • the tires 97,103 engage each other on opposite sides of the tube 20 thereby imparting driving motion from tire 103 to tire 97.
  • the tire 97 can, in the alternative, be mechanically driven or be unpowered.
  • tire 97 was inflated to 0,4 bar and tire 103 to a pressure of 1 bar.
  • About 5,5-6,5 bar is used in cylinder 112.
  • the pilot 130 comprises a cylinder slightly smaller in diameter than the tube 20 with a reduced center section 132 bounded at each end by head pieces 134,136, adapted to slide easily into the end of the tube.
  • a rubber gasket 140 Secured as by means of a bolt to the rear end of the pilot 130 is a rubber gasket 140 to hold the pilot in place an seal the end of the tube.
  • a replaceable nose piece 142 with a pointed forward end is removably secured to the forward end of the pilot and can, if desired, be provided with a forwardly extending brush 146 including wire bristles 148 for clearing debris from the openings in the baffle plates 13 ( Figure 1).
  • the pilot 130 is removed by blowing compressed air into the trailing end of the tube to force the pilot out of the tube.
  • a stock setter 150 is provided. It is attached to the trailing end of the tube as shown in Figures 4 and 6.
  • the stock setter 150 includes a rod such as a wooden rod 152, having a reduced forward end over which is mounted a tube 154 slightly larger in diameter than the tube 20.
  • a nose piece 156 with a forward end tapered at 158 is secured to the rod 152 by means of a fastener, e.g., a threaded lug 160 which is itself secured to the stock setter 150 by pin 162 that also holds tube 154 in place on the end of the rod 152.
  • washers 164 are between the nose piece 156 and the adjacent end of the rod 152 , one of which may be of rubber for cushioning purposes.
  • the number of washers used controls the extension or stock length of the end of the tube projecting from the tube sheet.
  • the tube 20 extends into the stock setter by a distance 166 corresponding to the desired tube stock projection length.
  • the operation of the apparatus will now be described.
  • the operator stands to one side of the apparatus and raises the upper tire 97 by operating the cylinder 112. He then sight aligns the drive wheels with the selected tube sheet hole.
  • One tube is then picked up from its box, the tube cleaning pilot 130 is attached to its leading end, it is placed in the tube sheet hole and the tire 97 is lowered by applying air pressure to the cylinder 112. Since the framework 24-33 is suspended resiliently from the boom 70, it will automatically be lined up with the tube 20.
  • the motor 107 is then started, thereby spin driving the tube into the heat exchanger.
  • the tube may occasionally speed up or slow down and even stop depending upon the presence of obstructions, most of which will be cleared by the continued rotation or spinning of the tube which can take place even if the forward motion ceases.
  • the stock setter 150 is manually applied to the trailing end of the tube allowing the tires to drive the tube to the predetermined end stock projection distance from the tube sheet 14.
  • the insertion time for a 46' tube was 15 seconds when the invention was used under normal field conditions.
  • the low pressure pneumatic tires provide a drive traction surface of from about one square inch to almost 15 square inches on the surface of the tube and, because the tires are close to the tube sheet, there is little likelihood of the tube collapsing from forward thrust.
  • the framework and carriage are easily maneuvered and the small size of the apparatus allows multiple machines to be operated simultaneously on one tube sheet.
  • the apparatus can be provided with multiple pairs of tires aligned side-by-side for inserting more than one tube at a time.
  • the suspension provided by the elastic cords 82 and cable 78 shifts the weight of the apparatus from the delicate tube material and allows the machine to align itself with the tube sheet hole.
  • the carriage and framework 24-33 allows free movement both horizontally and vertically for centered alignment of the endless drive members.
  • the set screws can be adjusted to direct the force applied by the tires to angles of from 0-15° so as to spin drive the tube forwardly into the heat exchanger, minimizing the stresses throughout the tube while it flexes as it is withdrawn from the shipping box through the machine and into place.
  • the spin drive of the tube assists in self-centering the tube pilot 130 and reduces friction and the insertion resistance in difficult areas as the pilot 130 cleans the holes before the tube enters.
  • Various adjustments can be provided. For example, lowering the compression wheels stop heads 89 cause the lower tire 103 and the compression tire 97 to engage more completely, producing two-wheel drive. Lowering the stops also increases the maximum surface area on the tube circumference. Tire air pressure is adjusted to conditions of use and the machine is forgiving; if the tube cannot enter a hole for any reason, the tires will slip on the tube until stopped by the operator while the hole is checked for distortion or obstructions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)
  • Automatic Assembly (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cleaning In General (AREA)

Claims (14)

  1. Vorrichtung für das Einführen eines Rohres in eine Kondensator- oder Wärmetauschereinheit (12) mit einer Mehrzahl von Deckblechen oder Stützwänden (13) mit Ausrichtöffnungen (18), durch welche das Rohr sich erstrecken soll, mit einer Antriebsrollenvorrichtung (97, 103), die mit dem Rohr (20) für das Vorwärtsbewegen des Rohres (20) axial in den Wärmetauscher (12) in Anlage bzw. in Eingriff bringbar ist, dadurch gekennzeichnet, daß die Antriebsrollenvorrichtung (97, 103) aufgepumpte Luftreifen aufweist, die auf einem vorgewählten Druck aufgepumpt sind und eine Stützoberfläche bilden, mit einem aufgepumpten Luftreifen (103), der unterhalb des Rohres (20) für die direkte Abstützung des Rohres (20) angeordnet ist, daß seitliche Führungsvorrichtungen (113) vorgesehen sind, um das Rohr (20) in seitlichen Richtungen zu führen, und die aufgepumpten Luftreifen (97, 103) drehangetrieben sind und sich um Achsen drehen, die in entgegengesetzte Richtungen zu der Längsachse des Rohres schrägstehen und funktional dem Rohr (20) zugeordnet sind und im wesentlichen kontinuierlich und gleichzeitig das Rohr (20) stützen und auf seiner eigenen Achse drehen, wenn das Rohr (20) nach und nach durch die Stützwand (13) in einem Kondensator (12) vorwärtsbewegt wird, um Spannungen bzw. Belastungen in dem Rohr (20) zu vergleichmäßigen, das in den Kondensator eingeführt wird, und um Schaden für ein derartiges Rohr zu vermeiden.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß aufgepumpte Luftreifen (97, 103) auf gegenüberliegenden Seiten des Rohres (20), einer oben und einer unten, angeordnet sind, und daß Mittel (96, 102) die aufgepumpten Luftreifen (97, 103) abstützen, um eine vorwärtstreibende Kraft in einem Winkel hinsichtlich der Längsachse des Rohres (20) zu schaffen.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß mindestens zwei zusammenwirkende aufgepumpte Luftreifen (97, 103) auf gegenüberliegenden Seiten des Rohres (20) vorgesehen sind, um ein Paar endloser Antriebselemente festzulegen, wobei das Rohr zwischen diesen verläuft, und wobei jedes eine Antriebskraft auf einer Seite des Rohres (20) erzeugt, die in einem spitzen Winkel und in entgegengesetzter Richtung hinsichtlich der Längsachse des Rohres ausgerichtet ist, um dadurch das Rohr zu spinnen bzw. schnell zu drehen, wenn das Rohr sich vorwärtsbewegt.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mindestens einer der aufgepumpten Luftreifen (97, 103) durch einen Motor (107) angetrieben ist.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die seitlichen Führungsvorrichtungen (113) Rollen sind, die sich um vertikale Achsen drehen, die auf gegenüberleigenden Seiten der Schnittachsen bzw. der Teilungsachse zwischen den Reifen (97, 103) angeordnet sind.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Reifendruck vorbestimmt ist, um den Reibschluß zwischen den Reifen und dem Rohr (20) auszuwählen und aufrechtzuerhalten, wodurch das Rohr gegenüber den Reifen durchrutschen kann, wenn es auf ein Hindernis in den Wärmetauscher (12) trifft.
  7. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mindestens ein aufgepumpter Luftreifen (97, 103) von dem anderen Reifen zurückziehbar ist und eine Positioniervorrichtung mit dem zurückziehbaren Reifen verbunden ist, um die Reifen voneinander zu trennen.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß eine Anschlagvorrichtung (89) für die Begrenzung der Bewegung eines Reifens gegenüber dem anderen vorgesehen ist.
  9. Vorrichtung nach einem der vorhergehenden Ansprüche und entfernbarer Anschlag bzw. Führungsstift, dadurch gekennzeichnet, daß der Führungsstift dafür ausgelegt ist, zeitweise in einem vorderen Ende eines Rohres (20) angebracht zu werden, welches in den Kondensator eingeführt wird, wobei der Führungsstift (130) eine Bürste (146) an seinem vorderen Ende aufweist, um bei der Entfernung von Hindernissen in der Bahn des Rohres zu helfen.
  10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß der Führungsstift eine hermetische Dichtung (14) an dem Ende des Rohres (20) aufweist, wodurch in das Rohr hinter dem Führungsstift (130) eingeführte Luft den Führungsstift (130) aus dem Ende des Rohres nach der Einführung des Rohres in den Kondensator wegdrückt.
  11. Verfahren für das Einführen eines Rohres in ausgerichtete Rohröffnungen einer Mehrzahl von nacheinander angeordneten Deckblechen oder Stützwänden, dadurch gekennzeichnet, daß
    das Rohr (20) mit oberen und unteren aufgepumpten Luftreifen (97, 103) in Anlage gebracht wird, die auf einen vorgegebenen Wert aufgepumpt sind und sich um Achsen drehen, die in entgegengesetzte Richtungen relativ zur Längsachse des Rohres (20) schräggestellt sind und des Rohr (20) im Reibschluß führen, während das Rohr auf einem Zurückziehteil abgestützt ist;
    das Rohr (20) in Richtungen von Seite zu Seite seitlich geführt ist; und
    das Rohr (20) nach vorwärts bewegt und gleichzeitig um seine eigene Achse gedreht wird, indem mindestens ein aufgepumpter Luftreifen (97, 103) angetrieben wird, wodurch das Rohr sich dreht, wenn es in die Stützwände (13) in Folge eintritt, um dadurch Belastungen auf das Rohr zu verteilen und den Einführwiderstand an jeder Öffnung zu vermindern, um Schaden an dem Rohr zu verhindern und dazu beizutragen, die Rohröffnungen in derartigen Stützwänden (13) freizulegen.
  12. Verfahren nach Anspruch 11, dadurch gekennzeichnet, daß der Luftdruck in dem Antriebselement geregelt wird, um einen vorgegebenen Reibschluß zwischen dem Antriebselement (97, 103) und dem Rohr (20) zu schaffen.
  13. Verfahren nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß ein Lochreiniger (130) zeitweise an dem Ende des einzuführenden Rohres (20) angebracht wird und das Rohr in die Stützwände (13) eingeführt wird, indem das Rohr mit den aufgepumpten Luftreifen (97, 103) vorwärtsbewagt wird, während der Lochreiniger (130) auf dem Rohr (20) gelagert ist und daß der Lochreiniger von dem Ende des Rohres entfernt wird, nachdem das Rohr somit eingeführt ist.
  14. Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß der Lochreiniger (130) auf dem Ende des Rohres (20) gleitbeweglich und hermetisch abgedichtet ist und daß ein Fluid unter Druck in das Rohr gedrückt wird, um den Lochreiniger nach dem Einführen des Rohres in die Stützwände zu entfernen.
EP87901193A 1986-01-30 1987-01-28 Verfahren zum einschieben von röhren in wärmeaustauscher und vorrichtung dazu Expired - Lifetime EP0292498B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US824443 1986-01-30
US06/824,443 US4785516A (en) 1986-01-30 1986-01-30 Method of inserting tubes into heat exchangers and apparatus therefor

Publications (3)

Publication Number Publication Date
EP0292498A1 EP0292498A1 (de) 1988-11-30
EP0292498A4 EP0292498A4 (de) 1989-09-11
EP0292498B1 true EP0292498B1 (de) 1993-10-20

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EP87901193A Expired - Lifetime EP0292498B1 (de) 1986-01-30 1987-01-28 Verfahren zum einschieben von röhren in wärmeaustauscher und vorrichtung dazu

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Country Link
US (1) US4785516A (de)
EP (1) EP0292498B1 (de)
JP (1) JPH01502170A (de)
AT (1) ATE96069T1 (de)
AU (1) AU600706B2 (de)
DE (1) DE3787889D1 (de)
WO (1) WO1987004650A1 (de)

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US8074356B2 (en) 2009-01-23 2011-12-13 Goodman Global, Inc. Method for manufacturing aluminum tube and fin heat exchanger using open flame brazing
US8387252B1 (en) * 2009-10-07 2013-03-05 National Boiler Service, Inc. Boiler tube clamp and method of using same

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JPS5230963A (en) * 1975-05-26 1977-03-09 Mitsui Eng & Shipbuild Co Ltd Tube inserting appartus for assembly of multitubular heat-exchanger an d the like
DE2620406B2 (de) * 1976-05-08 1980-04-03 Gerhard 4600 Dortmund Hindrichs Montagevorrichtung zum Einschieben der Rohre in die Rohrboden von großen Wärmetauschanlagen
US4202377A (en) * 1976-05-11 1980-05-13 Team, Inc. Pipe cleaning and plugging apparatus
DE2643632A1 (de) * 1976-09-28 1978-03-30 Kraftwerk Union Ag Vorrichtung zum zufuehren von rohren fuer waermetauscher
JPS53121255A (en) * 1977-03-30 1978-10-23 Hitachi Zosen Corp Tube inserting method for heat exchanger
US4380868A (en) * 1981-03-30 1983-04-26 United Aircraft Products, Inc. Tube loading apparatus
US4459917A (en) * 1982-08-30 1984-07-17 Carrier Corporation Method and apparatus for producing even tube extensions in a partially assembled heat exchanger
US4547963A (en) * 1983-06-15 1985-10-22 Ohmstede Machine Works, Inc. Apparatus and method for inserting tubes into a heat exchanger frame
JPS6094236A (ja) * 1983-10-28 1985-05-27 Hitachi Ltd 棒状物体に回転を与える送り装置

Also Published As

Publication number Publication date
EP0292498A4 (de) 1989-09-11
WO1987004650A1 (en) 1987-08-13
DE3787889D1 (de) 1993-11-25
EP0292498A1 (de) 1988-11-30
JPH01502170A (ja) 1989-08-03
AU600706B2 (en) 1990-08-23
AU7027087A (en) 1987-08-25
ATE96069T1 (de) 1993-11-15
US4785516A (en) 1988-11-22

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